-4(a+3)=-16

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Solution for -4(a+3)=-16 equation: 


Simplifying
-4(a + 3) = -16

Reorder the terms:
-4(3 + a) = -16
(3 * -4 + a * -4) = -16
(-12 + -4a) = -16

Solving
-12 + -4a = -16

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '12' to each side of the equation.
-12 + 12 + -4a = -16 + 12

Combine like terms: -12 + 12 = 0
0 + -4a = -16 + 12
-4a = -16 + 12

Combine like terms: -16 + 12 = -4
-4a = -4

Divide each side by '-4'.
a = 1

Simplifying
a = 1

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